iwlwifi: fix strict_strtoul error checking

This patch fixes handling of strcit_strtoul return value
"0 == sucess".

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index b9798fa..ffaf3f2 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3726,7 +3726,7 @@ static ssize_t store_flags(struct device *d,
        unsigned long val;
        u32 flags;
        int ret = strict_strtoul(buf, 0, &val);
-       if (!ret)
+       if (ret)
                return ret;
        flags = (u32)val;
 
@@ -3765,7 +3765,7 @@ static ssize_t store_filter_flags(struct device *d,
        unsigned long val;
        u32 filter_flags;
        int ret = strict_strtoul(buf, 0, &val);
-       if (!ret)
+       if (ret)
                return ret;
        filter_flags = (u32)val;
 
@@ -3905,7 +3905,7 @@ static ssize_t store_power_level(struct device *d,
        }
 
        ret = strict_strtoul(buf, 10, &mode);
-       if (!ret)
+       if (ret)
                goto out;
 
        ret = iwl_power_set_user_mode(priv, mode);